In Fig. 10.13, XY and X′Y′ are two parallel tangents to a circle with centre O and another tangent AB with point of contact C intersecting XY at A and X′Y′ at B. Prove that ∠ AOB = 90°.
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Chapter 10 Circles Ex 10.2 Q9 Class 10 Maths
Chapter 10 Circles Ex 10.2 Q8 Class 10 Maths A quadrilateral ABCD is drawn to circumscribe a circle (see Fig. 10.12). Prove that AB + CD = AD + BC Link : • Chapter 10 Circles | Ex. 10.2 Q8 | Class 1...
Chapter 10 Circles Ex 10.2 Q7 Class 10 Maths Two concentric circles are of radii 5 cm and 3 cm. Find the length of the chord of the
larger circle which touches the smaller circle. • Chapter 10 Circles | Ex 10.2 Q7| Class 10 ...